Wang, Xiaofei, Yanzhao Xu, and Hanna Fotina. “Effects of Probiotic Clostridium Butyrate on Performance and Immunocompetence and Digestive Function of Poultry”. Ukrainian Journal of Veterinary and Agricultural Sciences 3, no. 1 (March 17, 2020): 27-33. Accessed June 3, 2020. https://ujvas.com.ua/index.php/journal/article/view/43.